First-ever end-to-end optical traffic grooming with CRS-3
One of the exciting new features of the recently launched CRS-3 router enables Service Providers to implement first-ever all-optical end-to-end traffic grooming. One of the new linecards (unfortunately not compatible with CRS-1 due to increased hardware complexity) supports the SFSS protocol (defined in RFC 4824).
Using a high-quality video link and all-optical spatial separators you can easily transport more than one SFSS instance on the same wavelength, allowing you to implement a true sub-lambda traffic grooming in the optical domain. There’s just one gotcha: due to the encoding requirements of SFSS, you cannot carry it in the dense channel spacing of DWDM; you have to use CWDM or even wider optical bands depending on the receiver’s capabilities.
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They seem ideal for monitoring RFC2549 carrier and non-carrier frames alike. Grooming really isn't too much of a concern, since those frames sort of groom themselves ;)